心律失調症の非侵襲的なイメージング方式です
J E Burnes1, B Taccardi, Y Rudy
1Cardiac Bioelectricity Research and Training Center (CBRTC) and the Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7207, USA.
Circulation
|October 25, 2000
まとめ
非侵襲的心電図画像 (ECGI) は,現在,心室性短拍 (VT) 回路をマップすることができます. この技術は,再侵入経路と重要なコンポーネントを正確に特定し,心律不整の改善管理のための標的型抗リズム介入を可能にします.
科学分野:
- 心血管画像検査について
- 電気生理学 電気生理学
- 医療機器技術 医療機器技術について
背景:
- 心臓病の研究は進歩していますが,臨床翻訳にはより良い診断ツールが必要です.
- 現在の方法では,心室動脈不全 (VT) のような心律不全を正確に特定することができません.
- 診断と介入のために,心律不全のイメージングのための非侵襲的方法が必要です.
研究 の 目的:
- リエントラント不律症を視覚化するために,非侵襲的心電図画像 (ECGI) の適用を拡大する.
- VT中に表心臓の電気生理学的情報を再構築するECGIの能力を実証する.
主な方法:
- Epicardial情報を再構築するために体表面ポテンシャルを使用して非侵襲的なECGIモダリティを開発しました.
- 電極ソックを使用して,VT中に犬の記録された表心電位.
- 再建の精度をテストするために,ノイズとエラーを含む体幹データをシミュレートします.
主要な成果:
- ECGIは,エピカルディアのイソクロン,電グラム,およびポテンシャルを正確に再構築しました.
- 経路,出口部位,伝導ブロックを含むVT再侵入経路の重要な構成要素を成功裏に特定しました.
- リエントラント回路形態の詳細な特徴づけが達成されました.
結論:
- ECGIは,VT中に表心臓活性化の非侵襲的画像を可能にします.
- この技術は,不律性経路の重要な構成要素を特定し,局所化することができます.
- ECGIは,効果的な抗不律性介入目標の可能性を秘めています.
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